The idea of installing a special background is not something I like. Would it be possible to make the background change by an in game option? Like a small button on the main page to flip the background from Skyrim to Skyblivion and back again.

For the Skywind main screen, we need to make it so that Skyrim's text on it (continue, load, new, etc) look like they're meant to be there, which means making a wallpaper that is positioned correctly for the situation. for example, if we just used the normal imperial logo in the middle it wouldn't look right, it needs to be more off to the left.

Well I didn't figure anyone would comment so quickly, let alone you yourself and to be honest I had thought you abandoned the project since you hadn't commented on this thread in over a year. So I took your work and started trying to finish it myself. My apologies for encroaching on your territory.

This is where I'm at right now. There is a 1.5-2 second delay between the end of the intro video and the start of the usable mainscreen that I can't seem to change so I've had to work around it. I've been trying to sync the audio between the two to make it as seamless as possible, but it's not going so well at the moment. I also added a bit of a flash effect to make the transition from the video to the image a little more seamless.

I had originally tried to use a fade effect, but I went with the flash effect because when the main menu screen loads, the wallpaper starts off kinda bright before the colors settle and even out(an effect they added to the original menu maybe).
And I kinda figured the pc changed the load times which is why I was running Skyrim off my HDD when testing instead of my SSD that I normally have it on. I figured it would compensate at least some for people with older pc's.

No I don't. The enb I use has nothing to do with the files and does not change them in any way. It simply changes the way it looks(sharpness, brightness, saturation, etc.) on my screen when I launch with skse. If I launch Skyrim normally the colors look the same as the intro video.

No, I mean that ENBs that use the old d3d9.dll affect the colours of loading screens and the like, where as the new version of that .dll file lets you only choose to affect the in game graphics and not any loading screens or the main menu.

Well I have the latest version of the enb I use and to be honest it really doesn't bother me if the enb affects the menu and loading screens. I've already cut the loading screens and had the intro cut prior to starting this project.

As I understand, LASentry just wants to say you, that using of enb with changed saturation and brightness that affects the mainscreen is reducing your objectivity(vision of things) when you are making an intro. So you cannot properly estimate how it would look like on other PCs and enbs. So, in order to avoid this small issue and increase your productivity it's better to be turned off or changed to non-affecting-one, when you're testing an intro

I stated this above^ when I said it only looks like that when I launch Skyrim with skse(with enb) and that the colors are normal when I launch Skyrim normally(without enb). The video I posted was for, as I stated above, testing for audio sync(caused by a delay between the intro and mainscreen) and compensating for the "flash" that happens at the start of the mainscreen. It was in no way a "presentable" product. It was simply uploaded as a base to ask help upon for the issues I previously posted about. I simply did not see a reason to go out of my way to launch Skyrim normally to record a video that was asking for help on something that my enb did not affect. Sorry for any confusion.